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#![allow(dead_code)]
#[macro_use]
extern crate log;
#[macro_use]
extern crate serde_derive;
extern crate csv;
extern crate filetime;
extern crate quickcheck;
extern crate rand;
extern crate stats;
use std::fmt;
use std::mem::transmute;
use std::ops;
use quickcheck::{Arbitrary, Gen, QuickCheck, StdGen, Testable};
use rand::{Rng, thread_rng};
macro_rules! svec[
($($x:expr),*) => (
vec![$($x),*].into_iter()
.map(|s: &'static str| s.to_string())
.collect::<Vec<String>>()
);
($($x:expr,)*) => (svec![$($x),*]);
];
macro_rules! rassert_eq {
($given:expr, $expected:expr) => ({assert_eq!($given, $expected); true});
}
mod workdir;
mod test_cat;
mod test_count;
mod test_fixlengths;
mod test_flatten;
mod test_fmt;
mod test_frequency;
mod test_headers;
mod test_index;
mod test_join;
mod test_partition;
mod test_reverse;
mod test_search;
mod test_select;
mod test_slice;
mod test_sort;
mod test_split;
mod test_stats;
mod test_table;
fn qcheck<T: Testable>(p: T) {
QuickCheck::new().gen(StdGen::new(thread_rng(), 5)).quickcheck(p);
}
fn qcheck_sized<T: Testable>(p: T, size: usize) {
QuickCheck::new().gen(StdGen::new(thread_rng(), size)).quickcheck(p);
}
pub type CsvVecs = Vec<Vec<String>>;
pub trait Csv {
fn to_vecs(self) -> CsvVecs;
fn from_vecs(CsvVecs) -> Self;
}
impl Csv for CsvVecs {
fn to_vecs(self) -> CsvVecs { self }
fn from_vecs(vecs: CsvVecs) -> CsvVecs { vecs }
}
#[derive(Clone, Eq, Ord, PartialEq, PartialOrd)]
struct CsvRecord(Vec<String>);
impl CsvRecord {
fn unwrap(self) -> Vec<String> {
let CsvRecord(v) = self;
v
}
}
impl ops::Deref for CsvRecord {
type Target = [String];
fn deref<'a>(&'a self) -> &'a [String] { &*self.0 }
}
impl fmt::Debug for CsvRecord {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
let bytes: Vec<_> = self.iter()
.map(|s| s.as_bytes())
.collect();
write!(f, "{:?}", bytes)
}
}
impl Arbitrary for CsvRecord {
fn arbitrary<G: Gen>(g: &mut G) -> CsvRecord {
let size = { let s = g.size(); g.gen_range(1, s) };
CsvRecord((0..size).map(|_| Arbitrary::arbitrary(g)).collect())
}
fn shrink(&self) -> Box<Iterator<Item=CsvRecord>+'static> {
Box::new(self.clone().unwrap()
.shrink().filter(|r| r.len() > 0).map(CsvRecord))
}
}
impl Csv for Vec<CsvRecord> {
fn to_vecs(self) -> CsvVecs {
unsafe { transmute(self) }
}
fn from_vecs(vecs: CsvVecs) -> Vec<CsvRecord> {
unsafe { transmute(vecs) }
}
}
#[derive(Clone, Debug, Eq, Ord, PartialOrd)]
struct CsvData {
data: Vec<CsvRecord>,
}
impl CsvData {
fn unwrap(self) -> Vec<CsvRecord> { self.data }
fn len(&self) -> usize { (&**self).len() }
fn is_empty(&self) -> bool { self.len() == 0 }
}
impl ops::Deref for CsvData {
type Target = [CsvRecord];
fn deref<'a>(&'a self) -> &'a [CsvRecord] { &*self.data }
}
impl Arbitrary for CsvData {
fn arbitrary<G: Gen>(g: &mut G) -> CsvData {
let record_len = { let s = g.size(); g.gen_range(1, s) };
let num_records: usize = g.gen_range(0, 100);
CsvData{
data: (0..num_records).map(|_| {
CsvRecord((0..record_len)
.map(|_| Arbitrary::arbitrary(g))
.collect())
}).collect(),
}
}
fn shrink(&self) -> Box<Iterator<Item=CsvData>+'static> {
let len = if self.is_empty() { 0 } else { self[0].len() };
let mut rows: Vec<CsvData> =
self.clone()
.unwrap()
.shrink()
.filter(|rows| rows.iter().all(|r| r.len() == len))
.map(|rows| CsvData { data: rows })
.collect();
// We should also introduce CSV data with fewer columns...
if len > 1 {
rows.extend(
self.clone()
.unwrap()
.shrink()
.filter(|rows|
rows.iter().all(|r| r.len() == len - 1))
.map(|rows| CsvData { data: rows }));
}
Box::new(rows.into_iter())
}
}
impl Csv for CsvData {
fn to_vecs(self) -> CsvVecs { unsafe { transmute(self.data) } }
fn from_vecs(vecs: CsvVecs) -> CsvData {
CsvData {
data: unsafe { transmute(vecs) },
}
}
}
impl PartialEq for CsvData {
fn eq(&self, other: &CsvData) -> bool {
(self.data.is_empty() && other.data.is_empty())
|| self.data == other.data
}
}
|
